firebase.auth().signInWithEmailAndPassword(formData.username, formData.password).then(function () {
    mainView.router.navigate({name: 'dashboard'});
}).catch(function (error) {
    // Handle Errors here.
    var errorCode = error.code;
    var errorMessage = error.message;
    console.log(`[${errorCode}] ${errorMessage}`);

    $('#login-error').html(errorMessage);
});